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Exposure to too much androgen before birth might cause polycystic ovary syndrome later in life.

The immune system plays a key role in tissue repair, affecting both healing quality and regenerative ability.

The guidelines advise against using testosterone and DHEA in women for most conditions due to safety and effectiveness concerns, but suggest considering testosterone for postmenopausal women with low sexual desire.

Human skin can make serotonin and melatonin.

Wnt1/βcatenin signaling is crucial for heart repair after injury.

The Rotterdam Study updated its design and objectives in 2012, providing insights into various diseases in the elderly, including skin cancer, bone health, liver disease, neurological and psychiatric conditions, and respiratory issues.

Finasteride doesn't effectively treat hair loss in postmenopausal women.

Tofacitinib is effective and safe for severe hair loss, but full regrowth is less likely after 10 years of hair loss.

The timing of when the gene Bmal1 is active affects aging and survival, with its absence during development, not adulthood, leading to premature aging.

Future hair loss treatments should aim to extend hair growth, reactivate resting follicles, reverse shrinkage, and possibly create new follicles, with gene therapy showing promise.

Creating stronger blockers for skin enzymes might lead to better treatment for conditions like acne and excessive hair growth.

Knowing about finasteride's sexual side effects increases reported dysfunction.

Some patients taking finasteride or dutasteride may have ongoing sexual problems and depression even after stopping the medication.

The Rotterdam Study aims to understand various diseases in older adults.

Mice lacking the PPARγ gene in their fat cells had almost no fat tissue, severe metabolic problems, and abnormal development of other fat-related tissues.

The document concludes that the 5 alpha-reductase enzymes are important in steroid metabolism and related to various human diseases, with inhibitors used to treat conditions like male pattern baldness and prostate issues.

Testing basal 17-HP levels is a good way to screen for nonclassic adrenal hyperplasia in women with high androgen levels.

About 7% to 15% of Iranian women have polycystic ovary syndrome, depending on the criteria used to diagnose it.

The guidelines suggest a detailed approach to diagnosing and treating lupus, with a focus on regular check-ups, personalized medicine, and a range of drug options for different cases.

Planarian regeneration begins with a specific gene activation caused by injury, essential for healing and tissue regrowth.

Diagnosing PCOS in teenagers is challenging and should use strict criteria to avoid misdiagnosis and unnecessary worry.

MK-0773 safely increased muscle mass but did not improve muscle strength or function in elderly women with sarcopenia.

Finasteride effectively treats BPH, but needs more trials to understand potential.

Interferon alfa-2a is effective for treating cutaneous T cell lymphoma but has significant side effects.

Pregnancy can cause various skin changes and diseases, with PUPPP being the most common skin condition specific to pregnancy.

Iron deficiency may be related to hair loss, but there's not enough evidence to recommend iron screening or supplements for all hair loss patients.

Male and female skin differ in many ways, which could lead to gender-specific skin treatments.

Scientists have found a way to create hair follicles from skin cells of newborn mice, which can grow and cycle naturally when injected into adult mouse skin.

Hormone therapy for trans individuals is effective and generally safe in the short term.

Early diagnosis and treatment, using finasteride, minoxidil, or hair transplantation, improves hair loss outcomes.